Insect Alert For

Corn Earworm

Risk Level:
Moderate Risk Level
Affected Area:
Full page
Alert Details

Scattered corn earworm moth flights are anticipated across a large portion of the corn-growing region over the next three days as a cold front moves southeast through the central part of the country. South to southwest winds in advance of the front along with precipitation near the front should lead to an increase in moth flights through the weekend and into early next week. Moderate corn earworm migration risks are predicted tonight into tomorrow morning from Kansas and Missouri north into Nebraska, Iowa, far western Illinois, extreme southwest Wisconsin, central and southern Minnesota, and eastern South Dakota. The cold front begins pushing southeast into the upper Midwest and Plains tomorrow into tomorrow night, so the Moderate risk shifts further southeast, as well, and includes fields from northern Kansas and Missouri northeast into far eastern Nebraska, Iowa, southeast Minnesota, Wisconsin, Illinois, northwest Indiana, and southwest lower Michigan. Moderate risks continue across far eastern Illinois into Indiana, Ohio, lower Michigan, and southern Ontario, Canada Sunday night into Monday morning as the cold front pushes to the south and east. Growers located in or near a Moderate risk area should monitor traps closely and take appropriate action when and where needed in the coming week. Looking ahead to next week, Low migration risks return to the Plains states as early as Monday night into Tuesday ahead of the next developing weather system and continue into mid-week.